Across
- 4. having to do with or living at the bottom of a body of water
- 8. small singular life forms that can only be seen with a microscope.
- 9. tiny hairlike projections.
- 13. the stinging cells found in cnidarians (such as corals, jellyfish, anemones)
- 14. all the plants, trees etc in the world.
- 16. living organism that breathes in water with gills.
- 18. huge body of water where tons of life lives.
- 19. living creature on earth
- 20. jelly like creature that has long tentacles which possess stings.
- 21. biology, marine biology, chem, etc fall under this topic.
Down
- 1. the twilight zone, a layer of ocean between 656 and 3280 feet.
- 2. an underground layer of permeable rock, sand, or gravel that holds water.
- 3. the condition of low or depleted oxygen.
- 5. a life form who's cells have nuclei.
- 6. suspended development often employed by invertebrates to survive harsh conditions
- 7. one billion metric tons
- 10. different depths of the ocean ranging from shallow to deep
- 11. waste or debris.
- 12. the depth and shape of the sea floor.
- 15. symbiotic species of algae that live inside coral polyps.
- 17. mainly found in reefs, they are colorful and look like water branches.